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SUBSEQUENT EVENTS (Details) $ in Thousands | Jul. 14, 2022 USD ($) ft² | Jun. 30, 2022 USD ($) ft² | Dec. 31, 2021 USD ($)
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Rentable area (in square feet) | ft² |  | 13,639,287 |
Investment in real estate ventures |  | $ 429,246 | $ 411,110
Subsequent Event | 3151 Market Street |  |  |
Subsequent Event [Line Items] |  |  |
Rentable area (in square feet) | ft² | 417,000 |  |
Investment in real estate ventures | $ 307,000 |  |
Subsequent Event | 3151 Market Street | Joint Venture With Unaffiliated Third Party |  |  |
Subsequent Event [Line Items] |  |  |
Investment in real estate ventures | $ 55,000 |  |
Subsequent Event | 3151 Market Street | Joint Venture With Unaffiliated Third Party | Joint Venture With Unaffiliated Third Party |  |  |
Subsequent Event [Line Items] |  |  |
Equity method investment, ownership percentage | 45.00% |  |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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